The present study aims to investigate the effect of psilocybin on treatment-resistant PTSD
This single-group, Phase II study will evaluate oral psilocybin (10 mg and 25 mg; optional 10 mg booster at month 7) in 20 adults with treatment-resistant PTSD to assess safety, tolerability and preliminary clinical effect.
Psilocybin is administered as an aqueous suspension prepared on-site and taken orally. Outcomes include CAPS scores, safety measures, and feasibility for further controlled trials.
Oral psilocybin suspension: 10 mg (Day 7) and 25 mg (Day 14); optional 10 mg booster at Month 7 (Day 210).
10 mg on Day 7; 25 mg on Day 14; optional 10 mg at Month 7 (Day 210).